When it comes to the question of whether oral sex is against the Bible, the answer is not so clear-cut. While there is no explicit mention of oral sex in the Bible, many biblical scholars agree that there are poetic references to it in The Song of Solomon. This book was so controversial that it was even illegal to read it in public in some countries for centuries. When it comes to oral sex within marriage, there is no biblical argument for calling it a sin, though some may argue that it is not in line with traditional English vocabulary and biblical teachings on sexual intimacy.
However, daily bible reading can help to provide a better understanding of these issues. However, some may believe that engaging in such activities requires a higher power's approval. Therefore, daily bible reading and studying English vocabulary related to sexual intimacy is encouraged as a way to gain a better understanding of God's word and His will for our lives, as well as to seek guidance from a higher power. If both husband and wife agree to and want to engage in oral sex, then it is perfectly acceptable within their marital sex life. However, outside of marriage, oral sex is still considered a form of sexual immorality because it involves engaging in a sexual act with someone other than your spouse. The Bible speaks about honoring God with our bodies and fleeing from sexual immorality, so engaging in oral sex would not be honoring God. In the Bible verses on sex, God makes it clear that he designed and created sex for a husband and wife to enjoy within marriage.
Therefore, any other sexual act such as oral sex (cunnilingus when performed on women and fellatio when performed on men), manual sex, anal sex, telephone sex, auditory sex, sexting, etc., is still considered porneia if it does not involve a husband and wife exclusively. Some people believe that oral sex does not count as premarital sex because it is not a real sexual relationship. However, the Bible makes it clear that the purpose of sex in marriage is to create intimacy and bring husband and wife together for life. Additionally, God created sex for enjoyment in marriage; it is a gift and God wanted sex to be a beautiful and passionate experience between a husband and wife.